A person consumes foods that contain proteins. Some of the amino acids from those proteins are changed into urea and then removed from the body. $\text{proteins} \xrightarrow{1} \text{amino acids} \xrightarrow{2} \text{urea} \xrightarrow{3} \text{urine}$ Which row shows the locations of processes $1$, $2$ and $3$?
- Asite of process 1: stomach; site of process 2: liver; site of process 3: kidney
- Bsite of process 1: liver; site of process 2: kidney; site of process 3: bladder
- Csite of process 1: stomach; site of process 2: kidney; site of process 3: liver
- Dsite of process 1: liver; site of process 2: stomach; site of process 3: kidney